Horizontal coking-oven



0. PIEUE. l HomzoNTAL come IOV'EN..

APPLICATION FILED -IAII- 23, 1918.

1,378,129. PateIlted May 179 i921.

f1 TOHNEYS 0. PIETTE.

HORIZONTAL-COKING OVEN. APPLlcmoN FILED 1AN.28, 191B.

1,378,129. Patentd May 17; 1921.

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omvinn METTE, or Panis, rennen, Assren'on To ysocrn'ri nom :ons nonies 'A conn sFJaET-sonvar a rinrfrn, Aconronnmmn or BELGIUM.

HORIZONTAL COKING-GVEN.

Specification of 'Letters Patent.

Application led January 28, 1915i. Serial No. 214,16?.

T all whom t may concer/n:

Be it known that I, GLU/Inn Pm'r'rn, a citizen of Belgium, temporarily residing in Paris, France, have invented certain new and useful Improvements in Horizontal @cking-Ovens, of which the following isa specification. Y l

The present invention relates to improve- Aments in horizontal coking retorts having vertical channels or lues and means for the recuperation olf -the heat and by-products and the primary object is to'modify ovens of vthe type hitherto known for the purpose of rendering it possibleto heat same with producer gas, this gas as well as the airl necessaryfor combustion being previously heated by means of theheat carried by the fumes, said heat, according to the present invention, being recuperated where the fumes discharge from the heating channels of the oven proper.

.The said recuperation of heat is edected uby suitable devices provided in the foundations of the oven without the course of the gases, or of the air or fumes being reversed ory inverted,

The accompanying drawings show by way of example one embodiment of an improved colring oven according to the invention and in said drawings- Figure 1 is a verticaltransverse section through an oven comprising two parts, the left-hand portion being a section on the line A--B of Fig. 2 and the right-hand portion a section on the line C--D of said figure. 4

Fig. 2 is a cross section of Fig. l; and Fig. 3 is an enlarged detail section illustrating the vertical and horizontal channels included in my invention.

Each oven is transversely divided into two substantially symmetrical parts entirely independent of one another with regard to their heating.' Beneath the sole flue of each retort and in alinement with same is a chamber divided into a pair by 'a partition. walll located on the battery center line. In alterynate pairs of chambers are located the recuperators A and Gr for air and producer gas respectively.

The gas is led underthe gas-recuperators y G by means of three ducts v18, y19. and

each provided with a-regulating valve, said ductsdistributing the gas into three cham- Patented. May rr,- idear.

bers each of 'which feeds a certainnumbenof channels in the recuperator extending upwardly between adjacent liorizontalchannels Z9 in registry withsuitable apertures-in` tors A 'and can also be distributedinto" sevf the bailes 11 as shown in'detail in Fig'.3.

eral chambers each feeding a certain number i' of rising channels o: in which the air-is heated.

The air entering through aperture l first rises in the ascending'channels a in a zig-. zag course (which, obviously, 1s longer'than the vertical dimension of the chamber A!) and thence passes through the uptakes 2 toy the burners 3 where it meets the gas which is fed through the tubes T and ducts 17v and which passes upwardly through the rising channels a and registering apertures of the baltlesoi' the gas recuperators G, where it is heated. The gas passes through the uptakes 2l and orifices 4 terminatingclose to the burners. The gas is thus causedto min with the air and ignites and the prod-` ucts of combustion rise in the channels 5 and pass thence to the horizontal'flues fromA which they pass downward into the two channels 7 (Fig. l). These waste gases*` then pass through the right hand portionV` of Fig. l in the same manner'as indicatedin the section constituting the left side ot;

Fig. l, to wit, through the apertures -8 intdf the sole plate line 9 thenthrough chamberl y.

10 from which they enter the horizontal channels b (which, obviously, are longer than the horizontal dimension of chamber G) of the upper portion of the recuperators.

From the latter the said products pass through the chamber l2 and around the end of a balile l1 and thus enter the channels b of the second portion of the said horizontal channels 5 are arranged in groups between the baffles ill.y AAs shown diagrammatically in Figs. 1-v and 2 the groups become progressively smaller from the top downwardly whereby the efficiency of the products of combustion as a heatlng medium is preserved until the duct 16 is' reached. With the arrangement shown and described it is thus possible to heat the oven with producer gas without reversing `the course of the gases or of the air or lproducts of combustion or waste gases by preheating both the gas and air for combustion While recuperating the heat of the waste gases at theirdischarge from the heating channels. Burners B are furnished with gas from a pipe extending along the face of the battery and connected with the coke oven gas sup'- ply. Owing to the burners B provided betweenthe uptakes for the producer gas and air it is possible to make up any deficiency of the producer gas by adding the requisite quantity of coking oven gas or even to heat the oven` exclusively by means of coking oven as the roducer as recuperators beinfr in this case employed for heating the air.

at I claim as my invention and desire to secure by Letters Patent of the United States is 1. A horizontal coke voven comprising alternating retorts and sets of'heating flues, chambers and ducts for introducing air to the heating iiues, chambers and ducts for in troducing producer gas to the heating lues, one of said chambers being located beneath one of said retorts and the other beneath the next adjacent retort, the ducts from each chamber. leading to two heating lues located on opposite sides of one of the retorts, a pas'- sage for the waste products from each set of heating {iues through each of said chambers and forming in said chambers channels for the passage of air and producer gas in alternate chambers, the dimensions of the last named channels and passage being, within the chamber, respectively one several. times that oi the horizontal dimension of the chamber and the other materially longer than the vertical dimension of said chamber whereby substantially all of the effective heat carried by the waste products is abstracted therefrom by recuperation and transmitted to the gas and air used for combustion, all of said gases traveling at all times in the same direction without reversal of their course.

2. A horizontal coke oven comprisin alternating retorts and sets of heating ues, chambers and ducts for introducing air to the heating iiues, chambers and ducts for introducing producer gas to the heating flu-Qs, one of said chambers being located beii'f'th one of said retorts and the other-. beneath the next adjacent retort, the ducts from each chamber leading to two heating iiues located un opposite sides of one of the retorts, a passage for the waste products from each set of heating flucs to the axis of the oven,

thence through the sole of each retort abovel l the chambers to the outer end of the oven and then through each of said chambers and forming in said chambers channels for the passage of air and producer gas `in alternate chambers, the dimensions of the last named channels and passage being, within the chamber, respectively one several times that of the horizontal dimension of the chamber and the other materially longer than the vertical dimension of said chamber whereby substantially all of they effective heat carried bythe waste products is abstracted therel from by recuperation and transmitted to the gas and air used for combustion, all of said gases ytraveling at all times in the same direction without reversal of their course.

3. A horizontal coke oven comprising heating means, channels for conducting air,

channels for conducting producer gas to said heating means, groups of recuperating chan# nelsextending transversely to the direction of said conducting channels, said groups becoming progressively smaller in a downward direction and means whereby the products of combustion are conducted to the uppermost group of recuperating channels, said products of combustion passing successively through successive groups of recuperating channels to preheat the air and gas as they pass through said conducting channels to said heating means,

4. A horizontal coke oven comprising heating means, channels for conducting air, channels for conducting` producer gas to said heating means, recuperating channels extending transversely to the direction of said conducting channels, burners located between the gas and air channels whereby coke oven gas may be used as a substitute for or supplemental to the mixture of air and producer gas to heat the heating means, and means whereby the products of combustion are caused to pass through said recuperating channels to preheat said air and producer gas as they pass through said conducting channels to said heating means.

5. A horizontal coke oven comprising heating means, a plurality of apertured bafiies located beneath said heating means and forming a series of superimposed chambers communicating with each other, groups of horizontal channeled member in said chambers constituting recuperating channels, said groups of channeled members being spaced and producer gas on the other are conducted to and caused to pass through said undulating channels to said heating means and means whereby the pnzvducts of combustion are conducted from said heating means to the rst group of reeuperatng channels, said products of combustion passing successively through successive groups of recuperating channels from one chamber te another to preheat the air and producer gas 10 'specification in the presence of two witnesses OLVIER PIETTE.

i'itnesses CEAS. P. PruzssLY, EMILE BERTRANOF. 

